@inproceedings{perttunen2009implementation,
  title = "An implementation of auditory context recognition for mobile devices",
  author = "Perttunen, Mikko and Van Kleek, Max and Lassila, Ora and Riekki, Jukka",
  year = "2009",
  booktitle = "2009 Tenth International Conference on Mobile Data Management: Systems, Services and Middleware",
  organization = "IEEE",
  pages = "424--429",
}